US20180355794A1 - A gas turbine system - Google Patents
A gas turbine system Download PDFInfo
- Publication number
- US20180355794A1 US20180355794A1 US15/777,486 US201615777486A US2018355794A1 US 20180355794 A1 US20180355794 A1 US 20180355794A1 US 201615777486 A US201615777486 A US 201615777486A US 2018355794 A1 US2018355794 A1 US 2018355794A1
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- United States
- Prior art keywords
- gas
- combustion chamber
- ammonia
- stream
- exhaust gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 112
- 238000002485 combustion reaction Methods 0.000 claims abstract description 83
- 239000007789 gas Substances 0.000 claims abstract description 82
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 51
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 33
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000001301 oxygen Substances 0.000 claims abstract description 10
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 12
- 238000005336 cracking Methods 0.000 claims description 6
- 239000002918 waste heat Substances 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 abstract description 25
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 25
- 239000003054 catalyst Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000000470 constituent Substances 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
- 229910052707 ruthenium Inorganic materials 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical group N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/20—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products
- F02C3/22—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products the fuel or oxidant being gaseous at standard temperature and pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/20—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products
- F02C3/26—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products the fuel or oxidant being solid or pulverulent, e.g. in slurry or suspension
- F02C3/28—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products the fuel or oxidant being solid or pulverulent, e.g. in slurry or suspension using a separate gas producer for gasifying the fuel before combustion
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/04—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by decomposition of inorganic compounds, e.g. ammonia
- C01B3/047—Decomposition of ammonia
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/20—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas- turbine plants for special use
- F02C6/003—Gas-turbine plants with heaters between turbine stages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/28—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
- F23R3/36—Supply of different fuels
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/16—Controlling the process
- C01B2203/1614—Controlling the temperature
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/80—Aspect of integrated processes for the production of hydrogen or synthesis gas not covered by groups C01B2203/02 - C01B2203/1695
- C01B2203/84—Energy production
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/70—Application in combination with
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Definitions
- the present invention relates to combustion of ammonia to release energy.
- the invention relates to operation of a gas turbine, fuelled by combustion of ammonia.
- the present invention provides a gas turbine system having a source of ammonia and a source of an oxygen-containing gas, and a first combustion chamber connected to receive three gas streams: ammonia, a hydrogen-rich gas stream and oxygen-containing gas, and a turbine connected to receive an exhaust gas stream from the first combustion chamber.
- the gas turbine system according to the invention also has a second combustion chamber connected to receive three gas streams: an exhaust gas from the turbine, ammonia and a hydrogen-rich gas stream.
- the gas turbine system may further have a first cracker chamber that receives ammonia from the ammonia source and to supply a hydrogen-rich gas stream to the first combustion chamber.
- This hydrogen-rich gas stream supplies the hydrogen required for combustion of ammonia without the need to provide and store hydrogen.
- the gas turbine system may further have a second cracker chamber arranged to receive ammonia from the ammonia source and to supply a hydrogen-rich gas stream to the second combustion chamber.
- This hydrogen-rich gas stream supplies the hydrogen required for combustion of ammonia without the need to provide and store hydrogen.
- a temperature of the, or each, cracker chamber may regulated by mass control of a flow of exhaust gas from the second combustion chamber. This provides temperature control without the need for an external heating source.
- the gas turbine system may further have a heat exchanger arranged to receive exhaust gas from the second combustion chamber.
- a steam turbine may be provided, operated by heat derived from the heat exchanger.
- the present invention also provides a method for combustion of ammonia, including the steps of providing an oxygen-containing gas to a first combustion chamber, providing ammonia to the first combustion chamber; providing a hydrogen-rich gas to the first combustion chamber, performing a first combustion in the first combustion chamber, supplying an exhaust gas from the first combustion chamber to a second combustion chamber, supplying ammonia to the second combustion chamber, supplying a hydrogen-rich gas to the second combustion chamber; and performing a second combustion in the second combustion chamber with an enhanced equivalence ratio.
- Equivalence ratio in context is the stochiometric ratio.
- the hydrogen-rich gas supplied to the first combustion chamber is generated by cracking of ammonia.
- the hydrogen-rich gas supplied to the second combustion chamber may be generated by cracking of ammonia.
- the cracking may be carried out at an elevated temperature, the elevated temperature being provided by a flow of exhaust gas from the second combustion chamber.
- the method may further include the step of removing waste heat from exhaust gas stream from the second combustion chamber and recovering energy.
- the invention also provides a method for extracting energy from ammonia, including performing combustion of ammonia, and including the step of connecting a turbine to receive the exhaust gas from the first combustion chamber and providing exhaust gas from the turbine to the second combustion chamber, the flow of gas through the turbine generating a mechanical output.
- the single figure schematically illustrates an embodiment of the present invention.
- the figure shows a gas turbine system according to an exemplary embodiment of the present invention, which includes optional features in addition to the essential features described below.
- the gas turbine system comprises a source such as compressor 1 which provides an oxygen-containing gas such as air and passes it into a first combustion chamber 2 .
- Ammonia 3 passes through a calibrated mass flow separator 4 where a portion of the mass flow is passed directly to the first combustion chamber 2 and a second portion is passed to a cracker chamber 5 .
- the cracker chamber 5 contains a catalyst (Ru, Rh, Pt, Pd or similar) that promotes the decomposition of ammonia NH 3 into a hydrogen-rich gas mixture containing nitrogen, hydrogen and other constituents. The degree of decomposition is controlled by varying the temperature of the ammonia and the catalyst.
- Elevated temperatures of ammonia and catalyst may be achieved by heat exchange with an exhaust gas flow 20 from a second combustion chamber 7 , to be described below.
- the elevated temperature may be controlled by varying the mass flow of ammonia through the heat exchanger and mass flow of the exhaust gas 20 through the catalyst bed of the first cracker chamber.
- Ammonia stream 22 and hydrogen-rich stream 24 are injected into first combustion chamber 2 where combustion takes place producing heat and an exhaust gas flow 26 . Due to incomplete combustion of the ammonia (NH 3 ) the exhaust gas flow will have high levels of NO x .
- the exhaust gas flow 26 is supplied to a turbine 6 where work is transferred to a shaft or similar, to produce a mechanical output.
- the exhaust gas flow 26 leaving the turbine is hot and is routed to a second combustion chamber 7 .
- Ammonia 3 is flowed into a second calibrated flow separator 8 where a portion of the mass flow of ammonia is passed directly to the second combustion chamber 7 as an ammonia stream 28 .
- a second portion is passed to a second cracker chamber 9 .
- the cracker chamber 9 contains a catalyst (Ru, Rh, Pt, Pd or similar) that promotes the decomposition of NH 3 into nitrogen, hydrogen and other constituents into a hydrogen-rich stream 30 .
- the degree of decomposition is controlled by varying the temperature of the gases and catalyst within the second cracker chamber 9 .
- Elevated temperature in the second cracker chamber 9 may be achieved by heat exchange with an exhaust gas flow 32 from the second combustion chamber 7 .
- the temperature may be controlled by varying the mass flow of exhaust gas flow 32 through the heat exchanger and mass flow of ammonia through the catalyst bed of the cracker chamber.
- the ammonia stream 28 and the hydrogen-rich stream 30 are injected into the second combustion chamber 7 where they are combusted.
- the combustion in the second combustion chamber is performed with an enhanced equivalence ratio typically 1.0-1.2, meaning that an excess of ammonia is present.
- the enhanced ratio ensures that the combustion produces a significant proportion of NH 2 - ions.
- the exhaust gas 36 from the 2nd combustion chamber 7 flows through a calibrated flow separator 10 so that a portion of the mass flow is routed to another calibrated flow separator 11 .
- calibrated flow separators 10 and 11 mass flow is manipulated so that the first and second cracker chambers 5 and 9 are at the required temperatures.
- a heat exchanger loop 12 is used to remove waste heat from exhaust stream 36 and recover energy, for example by boiling water to rotate a steam turbine 13 .
- the invention accordingly provides an ammonia-powered turbine, allowing energy stored as ammonia to be recovered into a mechanical output at turbine 6 .
- nitrogen oxides NOx are removed from the exhaust stream.
- Combustion in the second combustion chamber is performed at an appropriate equivalence ratio to allow the formation of NH 2 - ions, which combine with NOx in the exhaust gas from the first combustion chamber.
- the equivalence ratio may be achieved by appropriate selection and control of the temperature of cracker chambers 5 , 9 .
- the temperature of the cracker chambers may in turn be controlled by controlling the flow of an exhaust gas.
- the process is energy efficient in that the required heating of cracking chambers to generate a hydrogen-rich stream from ammonia is provided by an exhaust stream from ammonia combustion. This avoids the need for separate provision and storage of a heating source such as hydrogen gas, or provision of heating by other means such as electrical heating.
- Energy present in the temperature of final exhaust gas may be recovered into mechanical output by operation of a steam turbine or other energy-recovery arrangements.
Abstract
Description
- The present invention relates to combustion of ammonia to release energy. In particular, the invention relates to operation of a gas turbine, fuelled by combustion of ammonia.
- Known procedures for release of energy from ammonia by combustion of the ammonia require supply of ammonia, an oxygen-containing gas and hydrogen. The supply and storage of hydrogen is expensive and raises safety concerns, and the present invention avoids the need to store hydrogen gas. It is preferred to operate the procedure for release of energy from ammonia as efficiently as possible, with minimum waste of energy. It is preferred that no external heat sources or energy sources are required to operate the procedure for combustion of ammonia.
- The present invention provides a gas turbine system having a source of ammonia and a source of an oxygen-containing gas, and a first combustion chamber connected to receive three gas streams: ammonia, a hydrogen-rich gas stream and oxygen-containing gas, and a turbine connected to receive an exhaust gas stream from the first combustion chamber. The gas turbine system according to the invention also has a second combustion chamber connected to receive three gas streams: an exhaust gas from the turbine, ammonia and a hydrogen-rich gas stream.
- The gas turbine system may further have a first cracker chamber that receives ammonia from the ammonia source and to supply a hydrogen-rich gas stream to the first combustion chamber. This hydrogen-rich gas stream supplies the hydrogen required for combustion of ammonia without the need to provide and store hydrogen.
- The gas turbine system may further have a second cracker chamber arranged to receive ammonia from the ammonia source and to supply a hydrogen-rich gas stream to the second combustion chamber. This hydrogen-rich gas stream supplies the hydrogen required for combustion of ammonia without the need to provide and store hydrogen.
- A temperature of the, or each, cracker chamber may regulated by mass control of a flow of exhaust gas from the second combustion chamber. This provides temperature control without the need for an external heating source.
- The gas turbine system may further have a heat exchanger arranged to receive exhaust gas from the second combustion chamber. A steam turbine may be provided, operated by heat derived from the heat exchanger.
- The present invention also provides a method for combustion of ammonia, including the steps of providing an oxygen-containing gas to a first combustion chamber, providing ammonia to the first combustion chamber; providing a hydrogen-rich gas to the first combustion chamber, performing a first combustion in the first combustion chamber, supplying an exhaust gas from the first combustion chamber to a second combustion chamber, supplying ammonia to the second combustion chamber, supplying a hydrogen-rich gas to the second combustion chamber; and performing a second combustion in the second combustion chamber with an enhanced equivalence ratio. Equivalence ratio in context is the stochiometric ratio.
- The hydrogen-rich gas supplied to the first combustion chamber is generated by cracking of ammonia.
- The hydrogen-rich gas supplied to the second combustion chamber may be generated by cracking of ammonia.
- The cracking may be carried out at an elevated temperature, the elevated temperature being provided by a flow of exhaust gas from the second combustion chamber.
- The method may further include the step of removing waste heat from exhaust gas stream from the second combustion chamber and recovering energy.
- The invention also provides a method for extracting energy from ammonia, including performing combustion of ammonia, and including the step of connecting a turbine to receive the exhaust gas from the first combustion chamber and providing exhaust gas from the turbine to the second combustion chamber, the flow of gas through the turbine generating a mechanical output.
- The single figure schematically illustrates an embodiment of the present invention.
- The figure shows a gas turbine system according to an exemplary embodiment of the present invention, which includes optional features in addition to the essential features described below.
- In the illustrated embodiment, the gas turbine system comprises a source such as compressor 1 which provides an oxygen-containing gas such as air and passes it into a
first combustion chamber 2.Ammonia 3 passes through a calibratedmass flow separator 4 where a portion of the mass flow is passed directly to thefirst combustion chamber 2 and a second portion is passed to a cracker chamber 5. The cracker chamber 5 contains a catalyst (Ru, Rh, Pt, Pd or similar) that promotes the decomposition of ammonia NH3 into a hydrogen-rich gas mixture containing nitrogen, hydrogen and other constituents. The degree of decomposition is controlled by varying the temperature of the ammonia and the catalyst. Elevated temperatures of ammonia and catalyst may be achieved by heat exchange with anexhaust gas flow 20 from a second combustion chamber 7, to be described below. The elevated temperature may be controlled by varying the mass flow of ammonia through the heat exchanger and mass flow of theexhaust gas 20 through the catalyst bed of the first cracker chamber. -
Ammonia stream 22 and hydrogen-rich stream 24 are injected intofirst combustion chamber 2 where combustion takes place producing heat and anexhaust gas flow 26. Due to incomplete combustion of the ammonia (NH3) the exhaust gas flow will have high levels of NOx. Theexhaust gas flow 26 is supplied to a turbine 6 where work is transferred to a shaft or similar, to produce a mechanical output. - The
exhaust gas flow 26 leaving the turbine is hot and is routed to a second combustion chamber 7.Ammonia 3 is flowed into a second calibratedflow separator 8 where a portion of the mass flow of ammonia is passed directly to the second combustion chamber 7 as anammonia stream 28. A second portion is passed to a second cracker chamber 9. The cracker chamber 9 contains a catalyst (Ru, Rh, Pt, Pd or similar) that promotes the decomposition of NH3 into nitrogen, hydrogen and other constituents into a hydrogen-rich stream 30. The degree of decomposition is controlled by varying the temperature of the gases and catalyst within the second cracker chamber 9. Elevated temperature in the second cracker chamber 9 may be achieved by heat exchange with anexhaust gas flow 32 from the second combustion chamber 7. The temperature may be controlled by varying the mass flow ofexhaust gas flow 32 through the heat exchanger and mass flow of ammonia through the catalyst bed of the cracker chamber. - The
ammonia stream 28 and the hydrogen-rich stream 30 are injected into the second combustion chamber 7 where they are combusted. The combustion in the second combustion chamber is performed with an enhanced equivalence ratio typically 1.0-1.2, meaning that an excess of ammonia is present. The enhanced ratio ensures that the combustion produces a significant proportion of NH2- ions. These NH2- ions combine with the NOx in theexhaust stream 34 from the turbine 6 to produce N2 and H2O, thereby removing the NOx from the exhaust stream. - The
exhaust gas 36 from the 2nd combustion chamber 7 flows through a calibratedflow separator 10 so that a portion of the mass flow is routed to another calibratedflow separator 11. By control of calibratedflow separators - Preferably, a
heat exchanger loop 12 is used to remove waste heat fromexhaust stream 36 and recover energy, for example by boiling water to rotate asteam turbine 13. - The invention accordingly provides an ammonia-powered turbine, allowing energy stored as ammonia to be recovered into a mechanical output at turbine 6.
- By use of dual combustion chambers, nitrogen oxides NOx are removed from the exhaust stream. Combustion in the second combustion chamber is performed at an appropriate equivalence ratio to allow the formation of NH2- ions, which combine with NOx in the exhaust gas from the first combustion chamber. The equivalence ratio may be achieved by appropriate selection and control of the temperature of cracker chambers 5, 9.
- The temperature of the cracker chambers may in turn be controlled by controlling the flow of an exhaust gas.
- The process is energy efficient in that the required heating of cracking chambers to generate a hydrogen-rich stream from ammonia is provided by an exhaust stream from ammonia combustion. This avoids the need for separate provision and storage of a heating source such as hydrogen gas, or provision of heating by other means such as electrical heating.
- Energy present in the temperature of final exhaust gas may be recovered into mechanical output by operation of a steam turbine or other energy-recovery arrangements.
- Although modifications and changes may be suggested by those skilled in the art, it is the intention of the Applicant to embody within the patent warranted hereon all changes and modifications as reasonably and properly come within the scope of the Applicant's contribution to the art.
Claims (11)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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GB1520612.1A GB2544552A (en) | 2015-11-20 | 2015-11-20 | A gas turbine system |
GB1520612.1 | 2015-11-20 | ||
PCT/EP2016/076453 WO2017084876A1 (en) | 2015-11-20 | 2016-11-02 | A gas turbine system |
Publications (2)
Publication Number | Publication Date |
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US20180355794A1 true US20180355794A1 (en) | 2018-12-13 |
US10753276B2 US10753276B2 (en) | 2020-08-25 |
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Application Number | Title | Priority Date | Filing Date |
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US15/777,486 Active 2037-06-30 US10753276B2 (en) | 2015-11-20 | 2016-11-02 | Gas turbine system |
Country Status (9)
Country | Link |
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US (1) | US10753276B2 (en) |
EP (1) | EP3377745B1 (en) |
JP (1) | JP6779998B2 (en) |
KR (1) | KR102622896B1 (en) |
CN (1) | CN108350806B (en) |
AU (1) | AU2016356598B2 (en) |
CA (1) | CA3001942C (en) |
GB (1) | GB2544552A (en) |
WO (1) | WO2017084876A1 (en) |
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US11156168B2 (en) * | 2016-11-08 | 2021-10-26 | Mitsubishi Power, Ltd. | Gas turbine plant having thermal decomposition of ammonia and pressurization of the decomposed gas and method thereof |
US20220195919A1 (en) * | 2020-12-18 | 2022-06-23 | New Wave Hydrogen, Inc. | Zero-Emission Jet Engine Employing A Dual-Fuel Mix Of Ammonia And Hydrogen Using A Wave |
US11649762B2 (en) * | 2020-05-06 | 2023-05-16 | New Wave Hydrogen, Inc. | Gas turbine power generation systems using hydrogen-containing fuel produced by a wave reformer and methods of operating such systems |
EP4230847A1 (en) * | 2022-02-15 | 2023-08-23 | Doosan Enerbility Co., Ltd. | Combined power generation system and driving method thereof |
US11890611B2 (en) | 2021-04-27 | 2024-02-06 | New Wave Hydrogen, Inc. | Conversion system for wave-rotor reactor system |
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EP3450850A1 (en) * | 2017-09-05 | 2019-03-06 | Siemens Aktiengesellschaft | A gas turbine combustor assembly with a trapped vortex cavity |
AU2018377847A1 (en) * | 2017-11-28 | 2020-06-11 | Renam Properties Pty Ltd | Autonomous vehicle energy and service hub |
US11920524B2 (en) * | 2021-04-15 | 2024-03-05 | Rtx Corporation | Multi-fuel, fuel injection system for a turbine engine |
KR102536353B1 (en) * | 2021-10-27 | 2023-05-26 | 두산에너빌리티 주식회사 | Combined power plant and operating method of the same |
WO2023144335A1 (en) * | 2022-01-27 | 2023-08-03 | Thyssenkrupp Industrial Solutions Ag | Process and plant for producing hydrogen from ammonia |
GB202210681D0 (en) * | 2022-07-21 | 2022-09-07 | Johnson Matthey Plc | Process |
KR20240033947A (en) | 2022-09-06 | 2024-03-13 | 한국에너지기술연구원 | Production apparatus and method for high purity hydrogen using ammonia |
EP4361096A1 (en) | 2022-10-24 | 2024-05-01 | Linde GmbH | Method and apparatus for processing ammonia |
EP4361094A1 (en) | 2022-10-24 | 2024-05-01 | Linde GmbH | Method and apparatus for processing ammonia |
EP4361095A1 (en) | 2022-10-24 | 2024-05-01 | Linde GmbH | Method and apparatus for providing heat |
WO2024090092A1 (en) * | 2022-10-28 | 2024-05-02 | 株式会社Ihi | Combustion system |
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Also Published As
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JP6779998B2 (en) | 2020-11-04 |
KR102622896B1 (en) | 2024-01-08 |
CN108350806B (en) | 2023-05-26 |
JP2018535355A (en) | 2018-11-29 |
AU2016356598B2 (en) | 2020-09-10 |
EP3377745B1 (en) | 2019-08-21 |
KR20180084051A (en) | 2018-07-24 |
WO2017084876A1 (en) | 2017-05-26 |
AU2016356598A1 (en) | 2018-04-26 |
CA3001942C (en) | 2023-12-19 |
CA3001942A1 (en) | 2017-05-26 |
CN108350806A (en) | 2018-07-31 |
GB201520612D0 (en) | 2016-01-06 |
GB2544552A (en) | 2017-05-24 |
US10753276B2 (en) | 2020-08-25 |
EP3377745A1 (en) | 2018-09-26 |
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